Panasonic CS-Z35UFEAW Service Manual
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Panasonic CS-Z35UFEAW Service Manual

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Please file and use this manual together with the service manual for Model No. CU-2E12SBE, CU-2E15SBE, CU-2E18SBE,
CU-2Z35TBE, CU-2Z41TBE, CU-2Z50TBE, Order No. PAPAMY1601015CE, PAPAMY1702035CE.
This service information is designed for experienced repair technicians only and is not designed for use by the general public.
It does not contain warnings or cautions to advise non-technical individuals of potential dangers in attempting to service a product.
Products powered by electricity should be serviced or repaired only by experienced professional technicians. Any attempt to service
or repair the products dealt with in this service information by anyone else could result in serious injury or death.
There are special components used in this equipment which are important for safety. These parts are marked by
Diagrams, Circuit Board Diagrams, Exploded Views and Replacement Parts List. It is essential that these critical parts should be replaced
with manufacturer's specified parts to prevent shock, fire or other hazards. Do not modify the original design without permission of
manufacturer.
In order to avoid frostbite, be assured of no refrigerant leakage during the installation or repairing of refrigerant circuit.
R32 REFRIGERANT
– This Air Conditioner contains and operates with refrigerant R32.
THIS PRODUCT MUST ONLY BE INSTALLED OR SERVICED BY QUALIFIED PERSONNEL.
Refer to Commonwealth, State, Territory and local legislation, regulations, codes, installation & operation manuals, before the
installation, maintenance and/or service of this product.
CS-Z25UFEAW
CS-Z35UFEAW
CS-Z50UFEAW
WARNING
IMPORTANT SAFETY NOTICE
PRECAUTION OF LOW TEMPERATURE
CAUTION
Order No: PAPAMY1803053CE
Indoor Unit
© Panasonic Corporation 2018.
Outdoor Unit
CU-Z25UBEA
CU-Z35UBEA
CU-Z50UBEA
Destination
Europe
Turkey
in the Schematic

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Summary of Contents for Panasonic CS-Z35UFEAW

  • Page 1 – This Air Conditioner contains and operates with refrigerant R32. THIS PRODUCT MUST ONLY BE INSTALLED OR SERVICED BY QUALIFIED PERSONNEL. Refer to Commonwealth, State, Territory and local legislation, regulations, codes, installation & operation manuals, before the installation, maintenance and/or service of this product. © Panasonic Corporation 2018.

  • Page 2: Table Of Contents

    Heating Operation ........77 7. Refrigeration Cycle Diagram ......24 15.4 Automatic Operation ........78 CS-Z25UFEAW CU-Z25UBEA 15.5 Indoor Fan Motor Operation .......78 CS-Z35UFEAW CU-Z35UBEA ....24 15.6 Powerful Mode Operation ......78 CS-Z50UFEAW CU-Z50UBEA ....25 15.7 Auto Restart Control ........78 15.8 Indication Panel ..........78...
  • Page 3 22. Exploded View and Replacement Parts List ..............143 22.1 Indoor Unit ..........143 22.2 Outdoor Unit ..........148  Specifications, designs and contents in this Service Manual are subject to change without notice.

  • Page 4: Safety Precautions

    1. Safety Precautions  Read the following “SAFETY PRECAUTIONS” carefully before perform any servicing.  Electrical work must be installed or serviced by a licensed electrician. Be sure to use the correct rating of the power plug and main circuit for the model installed. ...
  • Page 5 WARNING Do not perform flare connection inside a building or dwelling or room, when joining the heat exchanger of indoor unit with interconnecting piping. Refrigerant connection inside a building or dwelling or room must be made by brazing or welding. Joint connection of indoor unit by flaring method can only be made at outdoor or at outside of a building or dwelling or room.
  • Page 6 CAUTION Do not touch the sharp aluminium fin, sharp parts may cause injury. Carry out drainage piping as mentioned in installation instructions. If drainage is not perfect, water may enter the room and damage the furniture. Select an installation location which is easy for maintenance. Incorrect installation, service or repair of this air conditioner may increase the risk of rupture and this may result in loss damage or injury and/or property.

  • Page 7: Precaution For Using R32 Refrigerant

    2. Precaution for Using R32 Refrigerant  The basic installation work procedures are the same as conventional refrigerant (R410A, R22) models. However, pay careful attention to the following points: WARNING Since the working pressure is higher than that of refrigerant R22 models, some of the piping and installation and service tools are special.
  • Page 8 CAUTION 2-5. No ignition sources  No person carrying out work in relation to a refrigeration system which involves exposing any pipe work that contains or has contained flammable refrigerant shall use any sources of ignition in such a manner that it may lead to the risk of fire or explosion. He/She must not be smoking when carrying out such work.
  • Page 9 CAUTION Leak detection methods  Electronic leak detectors shall be used to detect flammable refrigerants, but the sensitivity may not be adequate, or may need re- calibration. (Detection equipment shall be calibrated in a refrigerant-free area.)  Ensure that the detector is not a potential source of ignition and is suitable for the refrigerant used. ...
  • Page 10 CAUTION Labelling  Equipment shall be labelled stating that it has been de-commissioned and emptied of refrigerant.  The label shall be dated and signed.  Ensure that there are labels on the equipment stating the equipment contains flammable refrigerant. Recovery ...

  • Page 11: Specifications

    3. Specifications Indoor CS-Z25UFEAW CS-Z35UFEAW Model Outdoor CU-Z25UBEA CU-Z35UBEA Performance Test Condition EUROVENT EUROVENT Phase, Hz Single, 50 Single, 50 Power Supply Min. Mid. Max. Min. Mid. Max. 0.85 2.50 3.40 0.85 3.50 3.80 Capacity BTU/h 2900 8530 11600 2900...
  • Page 12 Indoor CS-Z25UFEAW CS-Z35UFEAW Model Outdoor CU-Z25UBEA CU-Z35UBEA Type Hermetic Motor (Rotary) Hermetic Motor (Rotary) Compressor Motor Type Brushless (6 poles) Brushless (6 poles) Output Power Type Cross Flow Fan Cross Flow Fan Material ASG33 ASG33 Motor Type DC / Transistor (8-poles)
  • Page 13 Indoor CS-Z25UFEAW CS-Z35UFEAW Model Outdoor CU-Z25UBEA CU-Z35UBEA Weight Net (I/D / O/D) kg (lb) 13 (29) / 33 (73) 13 (29) / 35 (77) Pipe Diameter (Liquid / Gas) mm (inch) 6.35 (1/4) / 9.52 (3/8) 6.35 (1/4) / 9.52 (3/8)
  • Page 14 Indoor CS-Z50UFEAW Model Outdoor CU-Z50UBEA Performance Test Condition EUROVENT Phase, Hz Single, 50 Power Supply Min. Mid. Max. 0.90 5.00 5.70 Capacity BTU/h 3070 17100 19400 kcal/h 4300 4900 Running Current – 6.20 – Input Power 1.39k 1.81k Annual Consumption –...
  • Page 15 Indoor CS-Z50UFEAW Model Outdoor CU-Z50UBEA Type Hermetic Motor (Rotary) Compressor Motor Type Brushless (4 poles) Output Power Type Cross Flow Fan Material ASG33 Motor Type DC / Transistor (8-poles) Input Power Output Power Cool Heat Cool Heat Cool Speed Heat 1050 Cool 1190...
  • Page 16 Indoor CS-Z50UFEAW Model Outdoor CU-Z50UBEA Weight Net (I/D / O/D) kg (lb) 13 (29) / 43 (95) Pipe Diameter (Liquid / Gas) mm (inch) 6.35 (1/4) / 12.70 (1/2) Standard length m (ft) 5.0 (16.4) Length range (min – max) m (ft) 3 (9.8) ~ 30 (98.4) I/D &...
  • Page 17 CS-MZ20UFEA ● ● ● ● ● ● 2.5kW CS-Z25UFEAW ● ● ● ● ● ● 3.5kW CS-Z35UFEAW ● – ● – ● ● 5.0kW CS-Z50UFEAW – – – – ● – Capacity range of connectable units From 3.2kW to 6.0kW From 3.2kW to 6.0kW...
  • Page 18 CS-MZ20UFEA ● ● ● ● ● ● 2.5kW CS-Z25UFEAW ● ● ● ● ● ● 3.2kW CS-Z35UFEAW ● – ● – ● ● 5.0kW CS-Z50UFEAW – – – – ● – Capacity range of connectable units From 3.2kW to 5.7kW From 3.2kW to 5.7kW...

  • Page 19: Features

    4. Features  Inverter Technology Wider output power range Energy saving Quick Cooling Quick Heating More precise temperature control  Environment Protection Non-ozone depletion substances refrigerant (R32)  Long Installation Piping Long piping up to 20 meters (1.0 ~ 1. 5HP) and 30 meters (2.0 ~ 2.25HP) during single split connection only ...

  • Page 20: Location Of Controls And Components

    5. Location of Controls and Components Indoor Unit INDICATOR Airflow Direction Louver Air Outlet Aluminium Fin Auto OFF/ON button • Use when remote control is misplaced or a malfunction occurs. Receiver Remote Control Front Panel Air filters Air Inlet String Outdoor Unit Remote Control LCD display...

  • Page 21: Dimensions

    6. Dimensions Indoor Unit <Top View> <Side View> <Front View> <Side View> 49.7 <Back View> <Remote Control> <Remote Control Holder> <Bottom View> 65.4 80.5 80.4 Unit : mm...

  • Page 22: Outdoor Unit

    Outdoor Unit 6.2.1 CU-Z25UBEA <Top View> Space necessary for installation 67.6 (104.7) 570.3 104.9 60.5 100 mm 100 mm 1000 mm 2-way valve at Liquid side Anchor Bolt Pitch (High Pressure) × 3-way valve at Gas side (Low Pressure) <Side View> <Side View>...
  • Page 23 6.2.3 CU-Z50UBEA <Top View> Space necessary for installation (131) 34.7 100 mm 100 mm 1000 mm Anchor Bolt Pitch 360.5 × 613 2-way valve at Liquid side (High Pressure) 3-way valve at Gas side (Low Pressure) <Front View> <Side View> <Side View>...

  • Page 24: Refrigeration Cycle Diagram

    7. Refrigeration Cycle Diagram CS-Z25UFEAW CU-Z25UBEA CS-Z35UFEAW CU-Z35UBEA INDOOR OUTDOOR LIQUID EXPANSION TEMP. SIDE VALVE STRAINER STRAINER SENSOR 2-WAY VALVE PIPE TEMP. INTAKE SENSOR 2 TEMP. SENSOR CONDENSER PIPE TEMP. PIPE SENSOR 1 TEMP. SENSOR HEAT EXCHANGER (EVAPORATOR) SIDE MUFFLER...

  • Page 25: Cs-Z50Ufeaw Cu-Z50Ubea

    CS-Z50UFEAW CU-Z50UBEA INDOOR OUTDOOR LIQUID EXPANSION SIDE STRAINER VALVE 2-WAY PROCESS VALVE TUBE TEMP. PIPE SENSOR TEMP. CONDENSER INTAKE SENSOR 2 TEMP. SENSOR PIPE TEMP. PIPE SENSOR 1 TEMP. SENSOR HEAT EXCHANGER (EVAPORATOR) SIDE 4-WAYS VALVE 3-WAY RECEIVER VALVE TANK SENSOR COMPRESSOR COOLING...

  • Page 26: Block Diagram

    8. Block Diagram CS-Z25UFEAW CU-Z25UBEA CS-Z35UFEAW CU-Z35UBEA...

  • Page 27: Cs-Z50Ufeaw Cu-Z50Ubea

    CS-Z50UFEAW CU-Z50UBEA...

  • Page 28: Wiring Connection Diagram

    9. Wiring Connection Diagram Indoor Unit REMARKS : BLUE : PINK CN-CNT BR : BROWN TERMINAL CN–RMT (WHT) FUSE301 : ORANGE BOARD (WHT) T3.15A L250V BL : BLACK AC306 (BLK) NOISE G/GRN : GREEN FILTER Y/YLW : YELLOW AC303 (WHT) HAJEM-A W/WHT : WHITE CIRCUIT...

  • Page 29: Outdoor Unit

    Outdoor Unit 9.2.1 CU-Z25UBEA CU-Z35UBEA YELLOW (YEL) OR T(W) REMARKS BLU : BLUE BLK : BLACK SINGLE PHASE POWER SUPPLY TO INDOOR UNIT WHT : WHITE RED : RED BLUE YLW : YELLOW (RED) (BLU) GRY : GRAY OR R(U) OR S(V) GRN : GREEN TERMINAL...
  • Page 30 9.2.2 CU-Z50UBEA YELLOW (YLW) OR (C) REMARKS BLU: BLUE BLK: BLACK TO INDOOR UNIT SINGLE PHASE BLUE (BLK) (WHT) (RED) WHT: WHITE POWER SUPPLY (BLU) (RED) RED: RED OR (R) OR (S) YLW: YELLOW GRY: GRAY TERMINAL (TRADEMARK) REACTOR BOARD GRN: GREEN COMPERSSOR TERMINAL YLW/GRN: YELLOW/GREEN...

  • Page 31: Electronic Circuit Diagram

    10. Electronic Circuit Diagram 10.1 Indoor Unit CN-CNT CN–RMT (WHT) (WHT) *F302 5.1k *C57 *C56 1000p 1000p 0.1µ HAJEM-A (WHT) TERMINAL 0.01µ FUSE301 BOARD T3.15A L250V AC306 (BLK) NOISE FILTER AC303 (WHT) 0.01µ CIRCUIT IC02 CN–STM1 AC304 (RED) (BLU) COMMUNICATION CIRCUIT UP DOWN LOUVER MOTOR...

  • Page 32: Outdoor Unit

    10.2 Outdoor Unit 10.2.1 CU-Z25UBEA CU-Z35UBEA REACTOR RAT1 RAT2 (GRY) (GRY) 15.8k 220u SINGLE PHASE POWER SUPPLY TO INDOOR UNIT OUTDOOR AIR TEMP. SENSOR (THERMISTOR) t° TERMINAL CN–TH1 t° BOARD (WHT) PIPING TEMP. SENSOR (THERMISTOR) DATA t° (RED) COMMUNICATION COMPRESSOR TEMP. SENSOR (THERMISTOR) CN–TANK CIRCUIT 4.99k...
  • Page 33 10.2.2 CU-Z50UBEA TO INDOOR UNIT SINGLE PHASE (BLK) (WHT) (RED) POWER SUPPLY TERMINAL BOARD REACTOR RAT2 RAT1 DATA (GRY) (GRY) (RED) COMMUNICATION NOISE FILTER CIRCUIT FUSE 5 AC-BLK CIRCUIT 15.8k (20A 250V) (BLK) 470u FUSE 1 (25A 250V) FUSE 6 FUSE 8 OUTDOOR AIR TEMP.

  • Page 34: Printed Circuit Board

    11. Printed Circuit Board 11.1 Indoor Unit 11.1.1 Main Printed Circuit Board AC306 G301 CN-FM AC304 AC303 (Random Auto Restart enable/disable) CN-NANO CN-RMT CN-DISP CN-STM1 CN-CNT CN-STM2 CN-RCV HAJEM-A CN-TH...
  • Page 35 11.1.2 Display Printed Circuit Board CN-DISP 11.1.3 Receiver Printed Circuit Board CN-RCV LED201...

  • Page 36: Outdoor Unit

    11.2 Outdoor Unit 11.2.1 Main Printed Circuit Board 11.2.1.1 CU-Z25UBEA CU-Z35UBEA POWER TRANSISTOR (IPM) CN-MTR2 CN-MTR1 CN-TH1 CN-DEMAND CN-TANK CN-HOT CN-STM AC-WHT DATA CURRENT TRANSFORMER (CT) AC-BLK CN-V1...
  • Page 37 11.2.1.2 CU-Z50UBEA POWER TRANSISTOR (IPM) CN-MTR2 CURRENT TRANSFORMER (CT) CN-MTR1 CN-STM1 CN-TH1 CN-HOT DATA CN-TANK AC-WHT AC-BLK...

  • Page 38: Installation Instruction

    12. Installation Instruction 12.1 Indoor Unit Required Materials  Read catalog and other technical materials and prepare the required materials.  Pipe Size Reducer (CZ-MA1P) for CS-Z50*** when connect to multi. Other Items to be Prepared (Locally Purchased) Product name Remarks VP20 (outer diameter ø26mm), VP30 (outer diameter ø38mm), Reducer (VP30-VP20) ;...
  • Page 39 12.1.1.2 Remote Controller  Signals may not be transmitted and received Attaching the remote control holder to the wall correctly when the remote controller is operated while in the holder. Take the remote controller in Remote control holder fixing screws 7 your hand to operate the unit.
  • Page 40 12.1.3.1.2 To drill a hole in the wall and install a sleeve of piping Insert the piping sleeve to the hole. Indoor Outdoor Fix the bushing to the sleeve. Cut the sleeve until it extrudes about 15 mm 15 mm from the wall.
  • Page 41 12.1.3.1.5 Indoor unit installation  For floor installations, secure the indoor unit using 6 screws.  For wall installations, secure the mounting plate using 7 screws and the indoor unit using 4 screws. Temporarily secure the mounting plate to the wall, make sure that the panel is completely level, and mark the drilling points on the wall.
  • Page 42 12.1.3.2.3 Refrigerant piping See Refrigerant piping under Exposed Installation. Wall (Unit: mm) Left bottom piping Right bottom piping Unit piping position Hole location Right/left side piping Wall 12.1.3.3 Concealed installation  Only item peculiar to this installation method are given here. See Exposed installation for additional instructions. 12.1.3.3.1 Preparation ...
  • Page 43 12.1.4 Connecting the Refrigerant Piping 12.1.4.1 Connecting The Piping to Indoor For connection joint of all models Seal sufficiently the flare nut (both gas and liquid sides) Please make flare after inserting flare nut (locate at with neutral cure (Alkoxy type) & ammonia-free joint portion of tube assembly) onto the copper pipe.
  • Page 44 12.1.4.4 Insulating the refrigerant piping  Attach the pipe after checking for gas leakage, Auxiliary pipe Auxiliary pipe Auxiliary pipe described above. Slit Slit Cut the insulated portion of the on-site piping, matching it up with the connecting portion. Insulation sheet Secure the slit on the auxiliary pipe side with the butt joint on the connection pipe using the Tape...
  • Page 45 Indoor/outdoor Conductor not Conductor Conductor WIRE STRIPPING, Wire stripping connection fully inserted fully inserted over inserted CONNECTING terminal board REQUIREMENT 5 mm or more No loose strand PROHIBITED PROHIBITED ACCEPT (gap between wires) when inserted RISK OF FIRE JOINING OF WIRES MAY CAUSE WARNING OVERHEATING AND...

  • Page 46: Outdoor Unit

    12.2 Outdoor Unit 12.2.1 Select the Best Location  12.2.1.1 Outdoor Installation Diagram If an awning is built over the unit to prevent direct sunlight or rain, be careful that heat radiation from the condenser is not obstructed.  There should not be any animal or plant which Power supply cable ( ) could be affected by hot air discharged.
  • Page 47 12.2.3 Connect the Piping 12.2.3.1 Connecting the Piping to Indoor For connection joint location at outside building For connection joint location at inside building  Please make flare after inserting flare nut (locate at Refer to indoor installation instruction. joint portion of tube assembly) onto the copper pipe. (In case of using long piping) Connect the piping ...
  • Page 48 Remove the valve caps of both of the 2-way valve and 3-way valve. Position both of the valves to “OPEN” using a hexagonal wrench (4 mm). Mount valve caps onto the 2-way valve and the 3-way valve. Be sure to check for gas leakage. ...
  • Page 49 12.2.6.1 Cutting and Flaring the Piping Please cut using pipe cutter and then remove the burrs. Remove the burrs by using reamer. If burrs is not removed, gas leakage may be caused. Turn the piping end down to avoid the metal powder entering the pipe. Please make flare after inserting the flare nut onto the copper pipes.

  • Page 50: Installation And Servicing Air Conditioner Using R32

    13. Installation and Servicing Air Conditioner using R32 13.1 About R32 Refrigerant For air conditioning refrigerants such as R410A, the refrigerants were collected back in order to prevent their air dissipation, to curbe the global warming impact, in case they were released into the atmosphere. In the “4th Environmental Basic Plan”, 80% reduction of greenhouse gas emissions by 2050 is required, and due to this requirement, further reduction in the emission of high greenhouse effect gas, such as CFCs, is required.
  • Page 51 2. Characteristic of Pressure As shown in Table 2, R32 does not have much difference in vapor pressure at the same refrigerant temperature comparing to R410A, but comparing to R22, it is higher at 1.6 times more. Thus, the same as in case of R410A, it is necessary to do installation and service using high-pressure tools and components.

  • Page 52: Refrigerant Piping Installation • Tools Used In Services

    13.3 Refrigerant piping installation • Tools used in services 13.3.1 Required Tools R32 refrigerant air conditioners use the common parts as R410A air conditioners for two-way valves and three-way valves (diameters of service ports); thus, they maintain commonality in the maintenance of the compressive strength, the size of pipe flaring, and the size of flare nuts as R410A.
  • Page 53 3. Torque wrenches (diameters 1/2, 5/8) Manifold gauges / Charging hoses In order to strengthen the compressive strength, the diameters of wrenches change depending on the flare nut sizes. Torque wrenches Differences in charging hoses Differences in torque wrenches (common R410A) Normal 5.1 MPa 3.4 MPa...
  • Page 54 7. HFC refrigerant_Electric gas leakage tester 9. Refrigerant cylinders R32 refrigerant is often used for other mixed Refrigerant cylinders for R410A are painted in pink, refrigerant (R410A, R404A, R407C etc.). Therefore, and the ones for R32 are painted in other colors that the usage of existing HFC detectors is possible, but in might subject to change according to the international order to detect more accurately, we recommend to...
  • Page 55 11. Tools used for refrigerant piping installations and services Tools for R410A Common with R32 Possibility of usage for R22 ○ ○ Pipe cutters, reamers or scrapers ○ ○ Flare tools (clutch type) ○ ○ Torque wrench (1/4, 3/8) ○ ×...

  • Page 56: New Installation, Relocation, Repairing Of Refrigerant Cycle System The Procedures

    13.4 New installation, Relocation, Repairing of Refrigerant Cycle System The Procedures Relocation Repairing refrigerant cycle Installation Indoor / outdoor units and piping Pump down Refrigerant recovery • Displacing pipes and wires, and displacing indoor / outdoor units Prevention of impurity •...

  • Page 57: Piping Installation Of R32

    13.5 Piping installation of R32 13.5.1 Pipe materials used and flaring Copper pipes are used for refrigerant piping. Pipes Pipe thickness which comply with JIS Regulations need to be used. Room air conditioners which use R410A and R32 O and OL materials Thickness (mm) have higher pressure;...

  • Page 58: Installation, Relocation, And Service

    13.6 Installation, Relocation, and Service 13.6.1 Air purge and gas leak test for new installation (using new refrigerant pipes) using vacuum pump (From the point of view of global environment protection, do not release CFCs into the atmosphere during installation work) 1.
  • Page 59 13.6.2 Process of refrigerant recovery 1. Connect the center charging hose of manifold gauge to the in-let side of recovery device. 2. Connect the valves of the discharge side of recovery device and liquid side of refrigerant cylinder with red hose (charging hose).
  • Page 60 13.6.3 Relocation 1. Removing the air conditioning unit a) Recovery of outdoor unit refrigerant by pumping down Press “forced cooling button” (as a general rule, since 1998 the name of cooling testing button is changed, and this name is unified within the air conditioning industry), and then you are able to start cooling operation in which the room temperature is low, and you can recover the refrigerant from the outdoor unit.
  • Page 61 13.6.6 Re-insertion of refrigerant in service When re-insertion is needed, follow the procedures to ensure the insertion of new refrigerant at correct amount. 1. Attach charging hose (blue) to the service port of the outdoor unit. 2. Attach charging hose (red) to the vacuum pump. Fully open the 2-way and 3-way valves. 3.

  • Page 62: Repairing Of Refrigerant Cycle / Brazing Point

    13.7 Repairing of refrigerant cycle / Brazing point 13.7.1 Preparation for repairing of refrigerant cycle / brazing Brazing which is a technique needed for repairing refrigerant cycle requires advanced technique and experience, and this brazing procedure can only be performed by the workers who completed “Gas Welding Skill Training” regulated by the Occupational Safety and Health Act, and went through the training programs of refrigerant operations.
  • Page 63 2. Cylinder without adjustment valve side gauge pressure is adjusted by the adjuster. Check the both side valves of the torch and open the cylinder valve to check the remaining refrigerant in the cylinder. Caution: Do not attach oil component on the connection port of the adjuster. Especially, use an oxygen cylinder adjuster which is no oil substance type.
  • Page 64 13.7.5 Types of flame Types of flame change based on the proportion of propane and oxygen. [Neutral Flame] Perform brazing with this flame (This is a flame when oxygen and propane are mixed at proper proportion, and has lesser effect on the brazed metals) White core flame 10 ~ 15 mm...
  • Page 65 13.7.7 Selection of brazing material Use BAg brazing material (silver solder) to increase the welding performance. Tensile strength Composition of ingredients (%) Temperature (°C) Characteristics (Reference) Category Standard Brazing Base Number Solidus Liquidus Kgf•cm applications temp material Liquidity is good at low temperature, 49.0 14.5...
  • Page 66 13.7.10 Checking of brazing (insert) points 1. No impurity on the brazing point Gap 0.025 ~ 0.05 mm If dirt or oil is attached on the brazing point, the brazing filler metal does not reach to junction, and Inner diameter ø6.45 it may cause poor welding.
  • Page 67 (Reference) Melting temperature of copper • • • • • • • Approx. 1083°C Maximum temperature obtained in propane and oxygen • • • • • • • Approx. 1083°C The important point is to heat the bonding part uniformly within a short period of time until reaching to the brazing temperature in the following manner.

  • Page 68: Reference> Analysis Method For No Error Code, No Cooling / No Warming

    13.8 <Reference> Analysis method for no error code, no cooling / no warming 13.8.1 Preparation for appropriate diagnosis In order to obtain appropriate operation characteristics, minimum 15 minutes or more operation time [testing operation (rated operation)] is required. 1. Method of rated operation (rated operation) For the models which have two buttons of “emergency operation and forced cooling operation”, press forced cooling button once.
  • Page 69 1. Measuring temperature 1) Indoor unit suction temperature, release temperature, temperature difference, → Measure by thermometer 2) 2-way valve pipe temperature in cooling mode is low temperature (benchmark：5 ~ 10°C), in heating mode is medium temperature (benchmark：25 ~ 35°C). 3) 3-way valve pipe temperature in cooling mode is low temperature (benchmark：7 ~ 15°C) in heating mode is high temperature (benchmark：38 ~ 50°C).

  • Page 70: Operation Control

    14. Operation Control 14.1 Basic Function Inverter control, which equipped with a microcomputer in determining the most suitable operating mode as time passes, automatically adjusts output power for maximum comfort always. In order to achieve the suitable operating mode, the microcomputer maintains the set temperature by measuring the temperature of the environment and performing temperature shifting.

  • Page 71: Indoor Fan Motor Operation

    14.1.5 Automatic Operation  This mode can be set using remote control and the operation is decided by remote control setting temperature, remote control operation mode and indoor intake air temperature.  During operation mode judgment, indoor fan motor (with speed of Lo-) is running for 30 seconds to detect the indoor intake air temperature.

  • Page 72: Outdoor Fan Motor Operation

    [Heating]  According to indoor pipe temperature, automatic heating fan speed is determined as follows. RPM Increased RPM Maintain RPM Reduced Indoor Pipe Temp. B. Feedback control  Immediately after the fan motor started, feedback control is performed once every second. ...

  • Page 73: Airflow Direction

    14.4 Airflow Direction  There is one type of airflow, vertical airflow (directed by horizontal vane).  Control of airflow direction can be automatic (angles of direction is determined by operation mode, heat exchanger temperature and intake air temperature) and manual (angles of direction can be adjusted using remote control).

  • Page 74: Quiet Operation (Heating)

     Control contents Fan speed is changed from normal setting to quiet setting of respective fan speed. Fan speed for quiet operation is reduced from setting fan speed. 14.6 Quiet Operation (Heating)  Purpose To provide quiet heating operation compare to normal operation. ...

  • Page 75: Auto Restart Control

    14.8.2 OFF Timer Control OFF timer 1 and OFF timer 2 can be set using remote control, the unit with timer set will stop operate at set time. 14.9 Auto Restart Control  When the power supply is cut off during the operation of air conditioner, the compressor will re-operate within three to four minutes (there are 10 patterns between 2 minutes 58 seconds and 3 minutes 52 seconds to be selected randomly) after power supply resumes.

  • Page 76: Nanoex Operation

    14.12 nanoeX Operation  To purify the air in order to enjoy freshness and cleaner environment.  This operation provides clean air, moisturises your skin and hair, reduces and neutralises odours in the room.

  • Page 77: Operation Control (For Multi Split Connection)

    15. Operation Control (For Multi Split Connection) During multi split connection, indoor unit’s operation controls are same with single split connection unless specified in this chapter. 15.1 Cooling operation 15.1.1 Thermostat control  Capability supply to indoor unit is OFF (Expansion valve closed) when Intake Air Temperature — Internal setting temperature <...

  • Page 78: Automatic Operation

    15.4 Automatic Operation  This mode can be set using remote control and the operation is decided by remote control setting temperature, remote control operation mode, indoor intake and outdoor air temperature.  During operation mode judgment, indoor fan motor (with speed of -Lo) and outdoor fan motor are running for 30 seconds to detect the indoor intake and outdoor air temperature.

  • Page 79: Protection Control

    16. Protection Control 16.1 Protection Control for All Operations 16.1.1 Restart Control (Time Delay Safety Control)  The Compressor will not turn on within 3 minutes from the moment operation stops, although the unit is turned on again by pressing OFF/ON button at remote control within this period. ...
  • Page 80 16.1.4 Compressor Overheating Prevention Control  Instructed frequency for compressor operation will be regulated by compressor temperature. The changes of frequency are as below.  If compressor temperature exceeds 103°C, compressor will be stopped, occurs 4 times per 20 minutes, timer LED will be blinking.

  • Page 81: Protection Control For Cooling & Soft Dry Operation

    16.2 Protection Control for Cooling & Soft Dry Operation 16.2.1 Outdoor Air Temperature Control  The compressor operating frequency is regulated in accordance to the outdoor air temperature as shown in the diagram below.  This control will begin 1 minute after the compressor starts. ...

  • Page 82: Protection Control For Heating Operation

    16.2.5 Dew Prevention Control 1  To prevent dew formation at indoor unit discharge area.  This control will be activated if: Outdoor air temperature and Indoor pipe temperature judgment by microcontroller is fulfilled. When Cooling or Dry mode is operated more than 20 minutes or more. ...
  • Page 83 16.3.4 Low Temperature Compressor Oil Return Control  In heating operation, if the outdoor temperature falls below -10°C when compressor starts, the compressor frequency will be regulated up to 600 seconds. 16.3.5 Cold Draught Prevention Control  When indoor pipe temperature is low, cold draught operation starts where indoor fan speed will be reduced. 16.3.6 Deice Operation ...

  • Page 84: Servicing Mode

    17. Servicing Mode 17.1 Auto OFF/ON Button Auto OFF/ON Auto OFF/ON Auto OFF/ON Auto OFF/ON Button pressed Button pressed Button pressed Button pressed 5 sec 5 sec 5 sec Auto Operation Test Run Operation Stop Normal Cooling Operation Stop Test Run Operation Stop (Forced cooling operation) (Forced heating operation)

  • Page 85: Heat Only Operation

    REMOTE CONTROL RECEIVING SOUND OFF/ON MODE The Remote Control Receiving Sound OFF/ON Mode will be activated if the Auto OFF/ON button is pressed continuously for more than 16 seconds (4 “beep” sounds will occur at 16th seconds to identify the Remote Control Receiving Sound Off/On Mode is in standby condition) and press “AC Reset”...

  • Page 86: Remote Control Button

    17.3 Remote Control Button 17.3.1 SET Button  To check remote control transmission code and store the transmission code to EEPROM: Press “Set” button by using pointer. Press “Timer Set” button until a “beep” sound is heard as confirmation of transmission code changed. ...
  • Page 87 17.3.6 Special Setting mode LCD display area: Special setting display area (highlighted in color) Function Options (If any) Cannot enter this special setting mode under the following conditions: 1 Operation ON. 2 Under [Real/ON/OFF] time setting mode. To enter zone 1 area: Normal display Enter Zone1 mode...
  • Page 88 Function & Options list: Note: The functions described in the table may not be applicable to the model and may subject to change without further notice. Function Options Remark Name Remote control number selection A, B, C, D Solar radiation sensitivity level adjustment 1, 2, 3, 4, 5 [iAUTO-X/iAUTO/iCOMF, Cool &...

  • Page 89: Troubleshooting Guide

    18. Troubleshooting Guide 18.1 Refrigeration Cycle System In order to diagnose malfunctions, make sure that there are no Normal Pressure and Outlet Air Temperature (Standard) electrical problems before inspecting the refrigeration cycle. Gas Pressure Outlet air Temperature Such problems include insufficient insulation, problem with the (kg/cm (°C) power source, malfunction of a compressor and a fan.
  • Page 90 18.1.1 Relationship Between the Condition of the Air Conditioner and Pressure and Electric Current Cooling Mode Heating Mode Condition of the Electric current Electric current air conditioner Low Pressure High Pressure Low Pressure High Pressure during operation during operation Insufficient refrigerant ...

  • Page 91: Breakdown Self Diagnosis Function

    18.2 Breakdown Self Diagnosis Function 18.2.1 Self Diagnosis Function (Three Digits Alphanumeric Code)  When the latest abnormality code on the main Once abnormality has occurred during operation, unit and code transmitted from the remote the unit will stop its operation, and Timer LED controller are matched, power LED will light blinks.

  • Page 92: Error Codes Table

    18.3 Error Codes Table Diagnosis Abnormality / Abnormality Protection Problem Check location display Protection control Judgment Operation No memory of failure — Normal operation — — Indoor fan only  Indoor/outdoor wire terminal Indoor/outdoor operation can Indoor/outdoor After operation for ...
  • Page 93 Diagnosis Abnormality / Abnormality Protection Problem Check location display Protection control Judgment Operation  Check indoor/outdoor Wrong wiring and connection wire and connection Abnormal wiring or — — connecting pipe, expansion pipe piping connection valve abnormality  Expansion valve and lead wire and connector ...

  • Page 94: Self-Diagnosis Method

    18.4 Self-diagnosis Method 18.4.1 H11 (Indoor/Outdoor Abnormal Communication) Malfunction Decision Conditions  During startup and operation of cooling and heating, the data received from outdoor unit in indoor unit signal transmission is checked whether it is normal. Malfunction Caused  Faulty indoor unit PCB.
  • Page 95 18.4.2 H12 (Indoor/Outdoor Capacity Rank Mismatched) Malfunction Decision Conditions  During startup, error code appears when different types of indoor and outdoor units are interconnected. Malfunction Caused  Wrong models interconnected.  Wrong indoor unit or outdoor unit PCBs mounted. ...
  • Page 96 18.4.3 H14 (Indoor Intake Air Temperature Sensor Abnormality) Malfunction Decision Conditions  During startup and operation of cooling and heating, the temperatures detected by the indoor intake air temperature sensor are used to determine sensor errors. Malfunction Caused  Faulty connector connection. ...
  • Page 97 18.4.4 H15 (Compressor Temperature Sensor Abnormality) Malfunction Decision Conditions  During startup and operation of cooling and heating, the temperatures detected by the outdoor compressor temperature sensor are used to determine sensor errors. Malfunction Caused  Faulty connector connection.  Faulty sensor.
  • Page 98 18.4.5 H16 (Outdoor Current Transformer) Malfunction Decision Conditions  An input current, detected by Current Transformer CT, is below threshold value when the compressor is operating at certain frequency value for 3 minutes. Malfunction Caused  Lack of gas  Broken CT (current transformer) ...
  • Page 99 18.4.6 H19 (Indoor Fan Motor – DC Motor Mechanism Locked) Malfunction Decision Conditions  The rotation speed detected by the Hall IC during fan motor operation is used to determine abnormal fan motor (feedback of rotation > 2550 rpm or < 50 rpm) Malfunction Caused ...
  • Page 100 18.4.7 H23 (Indoor Pipe Temperature Sensor Abnormality) Malfunction Decision Conditions  During startup and operation of cooling and heating, the temperatures detected by the indoor heat exchanger temperature sensor are used to determine sensor errors. Malfunction Caused  Faulty connector connection. ...
  • Page 101 18.4.8 H24 (Indoor Pipe Temperature Sensor 2 Abnormality) Malfunction Decision Conditions  During startup and operation of cooling and heating, the temperatures detected by the indoor heat exchanger temperature sensor 2 are used to determine sensor errors. Malfunction Caused  Faulty connector connection.
  • Page 102 18.4.9 H27 (Outdoor Air Temperature Sensor Abnormality) Malfunction Decision Conditions  During startup and operation of cooling and heating, the temperatures detected by the outdoor air temperature sensor are used to determine sensor errors. Malfunction Caused  Faulty connector connection. ...
  • Page 103 18.4.10 H28 (Outdoor Pipe Temperature Sensor Abnormality) Malfunction Decision Conditions  During startup and operation of cooling and heating, the temperatures detected by the outdoor pipe temperature sensor are used to determine sensor errors. Malfunction Caused  Faulty connector connection. ...
  • Page 104 18.4.11 H30 (Compressor Discharge Temperature Sensor Abnormality) Malfunction Decision Conditions  During startup and operation of cooling and heating, the temperatures detected by the outdoor discharge pipe temperature sensor are used to determine sensor errors. Malfunction Caused  Faulty connector connection. ...
  • Page 105 18.4.12 H32 (Outdoor Heat Exchanger Temperature Sensor 2 Abnormality) Malfunction Decision Conditions  During startup and operation of cooling and heating, the temperatures detected by the outdoor heat exchanger temperature sensor are used to determine sensor errors. Malfunction Caused  Faulty connector connection.
  • Page 106 18.4.13 H33 (Unspecified Voltage between Indoor and Outdoor) Malfunction Decision Conditions  The supply power is detected for its requirement by the indoor/outdoor transmission. Malfunction Caused  Wrong models interconnected.  Wrong indoor unit and outdoor unit PCBs used.  Indoor unit or outdoor unit PCB defective.
  • Page 107 18.4.14 H34 (Outdoor Heat Sink Temperature Sensor Abnormality) Malfunction Decision Conditions  During startup and operation of cooling and heating, the temperatures detected by the outdoor heat sink temperature sensor are used to determine sensor errors. Malfunction Caused  Faulty connector connection. ...
  • Page 108 18.4.15 H36 (Outdoor Gas Pipe Sensor Abnormality) Malfunction Decision Conditions  During startup and operation of cooling and heating, the temperatures detected by the outdoor gas pipe temperature sensor are used to determine sensor errors. Malfunction Caused  Faulty connector connection. ...
  • Page 109 18.4.16 H37 (Outdoor Liquid Pipe Temperature Sensor Abnormality) Malfunction Decision Conditions  During startup and operation of cooling and heating, the temperatures detected by the outdoor liquid pipe temperature sensor are used to determine sensor errors. Malfunction Caused  Faulty connector connection. ...
  • Page 110 18.4.17 H97 (Outdoor Fan Motor – DC Motor Mechanism Locked) Malfunction Decision Conditions  The rotation speed detected by the Hall IC during fan motor operation is used to determine abnormal fan motor. Malfunction Caused  Operation stops due to short circuit inside the fan motor winding. ...
  • Page 111 18.4.18 H98 (Error Code Stored in Memory and no alarm is triggered / no TIMER LED flashing) Malfunction Decision Conditions  Indoor high pressure is detected when indoor heat exchanger is detecting very high temperature when the unit is operating in heating operation. ...
  • Page 112 18.4.19 H99 (Indoor Freeze Prevention Protection: Cooling or Soft Dry) Error Code will not display (no Timer LED blinking) but store in EEPROM Malfunction Decision Conditions  Freeze prevention control takes place (when indoor pipe temperature is lower than 2°C) Malfunction Caused ...
  • Page 113 18.4.20 F11 (4-way Valve Switching Failure) Malfunction Decision Conditions  When indoor heat exchanger is cold during heating (except deice) or when indoor heat exchanger is hot during cooling and compressor operating, the 4-way valve is detected as malfunction. Malfunction Caused ...
  • Page 114 18.4.21 F17 (Indoor Standby Units Freezing Abnormality) Malfunction Decision Conditions  When the different between indoor intake air temperature and indoor pipe temperature is above 10°C or indoor pipe temperature is below -1.0°C. Remark: When the indoor standby unit is freezing, the outdoor unit transfers F17 error code to the corresponding indoor unit and H39 to other indoor unit(s).
  • Page 115 18.4.22 F90 (Power Factor Correction Protection) Malfunction Decision Conditions  To maintain DC voltage level supply to power transistor.  To detect high DC voltage level after rectification. Malfunction Caused  During startup and operation of cooling and heating, when Power Factor Correction (PFC) protection circuitry at the outdoor unit main PCB senses abnormal DC voltage level for power transistors.
  • Page 116 18.4.23 F91 (Refrigeration Cycle Abnormality) Malfunction Decision Conditions  The input current is low while the compressor is running at higher than the setting frequency. Malfunction Caused  Lack of gas.  3-way valve close. Troubleshooting...
  • Page 117 18.4.24 F93 (Compressor Rotation Failure) Malfunction Decision Conditions  A compressor rotation failure is detected by checking the compressor running condition through the position detection circuit. Malfunction Caused  Compressor terminal disconnect  Faulty Outdoor PCB  Faulty compressor Troubleshooting...
  • Page 118 18.4.25 F95 (Outdoor High Pressure Protection: Cooling or Soft Dry) Malfunction Decision Conditions  During operation of cooling or soft dry, when outdoor unit heat exchanger high temperature data is detected by the outdoor unit heat exchanger thermistor. Malfunction Caused ...
  • Page 119 18.4.26 F96 (IPM Overheating) Malfunction Decision Conditions  During operating of cooling and heating, when IPM temperature data (100°C) is detected by the IPM temperature sensor. Multi Models only Compressor Overheating: During operation of cooling and heating, when the compressor OL is activated. Heat Sink Overheating: During operation of cooling and heating, when heat sink temperature data (90°C) is detected by the heat sink temperature sensor.
  • Page 120 18.4.27 F97 (Compressor Overheating) Malfunction Decision Conditions  During operation of cooling and heating, when compressor tank temperature data (112°C) is detected by the compressor tank temperature sensor. Malfunction Caused  Faulty compressor tank temperature sensor  2/3 way valve closed ...
  • Page 121 18.4.28 F98 (Input Over Current Detection) Malfunction Decision Conditions  During operation of cooling and heating, when an input over-current (X value in Total Running Current Control) is detected by checking the input current value being detected by current transformer (CT) with the compressor running.
  • Page 122 18.4.29 F99 (DC Peak Detection) Malfunction Decision Conditions During startup and operation of cooling and heating, when inverter DC peak data is received by the outdoor internal DC Peak sensing circuitry. Malfunction Caused  DC current peak due to compressor failure. ...

  • Page 123: Disassembly And Assembly Instructions

    19. Disassembly and Assembly Instructions WARNING High Voltage is generated in the electrical parts area by the capacitor. Ensure that the capacitor has discharged sufficiently before proceeding with repair work. Failure to heed this caution may result in electric shocks. 19.1 Remove the Front Panel Front Panel 1.

  • Page 124: Remove The Front Grille

    19.2 Remove the Front Grille Slide the hook to left side. 1. Release the hook in the right side of the Top Vane and then take out the Top Vane. Top Vane Front Vane 2. Take out the Front Vane. Front Grille 3.

  • Page 125: Remove The Discharge Grille

    19.3 Remove the Discharge Grille. 6. Release the 2 screws to take out of the Discharge Grille. 1. Detach the Indicator complete from the Discharge Grille and release the connector CN-DISP. Discharge Grille 2. Detach the Receiver complete from the Discharge Grille and release the connector CN-RCV.
  • Page 126 2. Release the 2 screws of the earth grounding terminal. 3. Detach the 2 terminal black & red color. 4. Release the screw of the Terminal Board. 5. Release the screw at bottom of the Control Board and then slide out hold Control Board.

  • Page 127: Remove The Drain Pan

    19.5 Remove the Drain Pan Drain Pan 1. Release the 2 screws to remove the Drain Pan. 19.6 Remove the Cross Flow Fan and Fan Motor 1. Release the 3 screws from the particular piece Evaporator. Evaporator...
  • Page 128 2. Remove the screw that holding Cross Flow Fan Motor axis. Cross Flow Fan 3. Release the 4 screws of the Fan Motor. Fan Motor can be removed after the removal of the Cross Flow Fan...

  • Page 129: Outdoor Electronic Controller Removal Procedure

    19.7 Outdoor Electronic Controller Removal Procedure 19.7.1 CU-Z25UBEA Caution! When handling electronic controller, be careful of electrostatic discharge. Remove the 5 screws of the Top Panel. Remove the Control Board as follows: Screws Top Panel Release 3 Terminal Screws Connectors, L, N and Earth Wire Screw.
  • Page 130 19.7.2 CU-Z35UBEA Caution! When handling electronic controller, be careful of electrostatic discharge. Remove the 5 screws of the Top Panel. Remove the Control Board as follows: Fig. 4 Fig. 1 Remove the 8 screws of the Front Panel. Fig. 2 Fig.
  • Page 131 19.7.3 CU-Z50UBEA Caution! When handling electronic controller, be careful of electrostatic discharge. Remove the 5 screws of the Top Panel. Remove 2 screws for the plate of Terminal Board Cover. Top Panel Screw Plate of Terminal Board Cover Screws Screws Screws Fig.

  • Page 132: Technical Data

    15.8 2403 1745 354 2487 1664 444 2723 1940 351 2541 1826 371 2853 1983 310 2541 1797 401 2262 1668 518 (Dry bulb value based on 46% humidity) 20.1.2 CS-Z35UFEAW CU-Z35UBEA Indoor (°C) Outdoor DB (°C) 19.0 4239 3138 550 4067 3074 598 4246 3148 543 4174 3109 515 4314 3163 496 3910 2989 657 3500 2937 860 22.0 4608 2532 599 4662 2541 533 4644 2549 560 4642 2537 535 4870 2660 479 4443 2510 651 3890 2265 857...

  • Page 133: Heat Mode Performance Data

    3007 2260 1060 2880 1180 3620 1190 3400 3555 2456 1030 2754 1117 3573 1102 3565 3835 20.2.2 CS-Z35UFEAW CU-Z35UBEA Indoor (°C) Outdoor WB (°C) 2554 1188 3180 1392 4140 1584 3923 1083 3803 2710 1180 3370 1410 4350 1550...

  • Page 134: Service Data

    21. Service Data Service data provided are based on the air conditioner running under rated frequency during forced cooling / forced heating mode. 21.1 Cool Mode Outdoor Air Temperature Characteristic Condition Indoor room temperature: 27°C Dry Bulb/19°C Wet Bulb Unit setting: Standard piping length, forced cooling at 16°C, Hi fan Compressor frequency: Rated for cooling operation Piping length: 5m Voltage: 230V...
  • Page 135 21.1.2 CS-Z35UFEAW CU-Z35UBEA 14.00 Outdoor Air Indoor Discharge Temperature (°C) Air Temperature (°C) 13.00 10.55 12.00 11.63 12.50 11.00 13.44 10.00 9.00 8.00 Outdoor Air Temperature (°C) 5.00 Outdoor Air Current Temperature (°C) 4.50 3.17 4.00 3.57 3.90 3.50 4.28 3.00...
  • Page 136 21.1.3 CS-Z50UFEAW CU-Z50UBEA 13.0 Outdoor Air Indoor Discharge Temperature (°C) Air Temperature (°C) 12.0 10.2 11.0 11.0 11.8 10.0 9 11 13 15 17 19 21 23 25 27 29 31 33 35 37 39 41 43 45 Outdoor Air Temperature (°C) 9.00 Outdoor Air Current...

  • Page 137: Heat Mode Outdoor Air Temperature Characteristic

    21.2 Heat Mode Outdoor Air Temperature Characteristic Condition Indoor room temperature: 20°C Dry Bulb/ -°C Wet Bulb Unit setting: Standard piping length, forced heating at 30°C, Hi fan Compressor frequency: Rated for Heating operation Piping length: 5m Voltage: 230V 21.2.1 CS-Z25UFEAW CU-Z25UBEA Outdoor Air Indoor Discharge...
  • Page 138 21.2.2 CS-Z35UFEAW CU-Z35UBEA Outdoor Air Indoor Discharge Temperature (°C) Air Temperature (°C) 29.41 32.39 34.41 40.36 43.44 46.03 Outdoor Air Temperature (°C) 6.00 Outdoor Air Current Temperature (°C) 5.00 3.45 3.75 4.00 3.94 4.50 3.00 4.80 5.10 2.00 1.00 Outdoor Air Temperature (°C)
  • Page 139 21.2.3 CS-Z50UFEAW CU-Z50UBEA 55.00 Outdoor Air Indoor Discharge Temperature (°C) Air Temperature (°C) 50.00 31.74 34.71 45.00 36.69 42.15 40.00 45.42 35.00 48.10 30.00 25.00 -20 -18 -16 -14 -12 -10 -8 -6 -4 -2 8 10 12 14 Outdoor Air Temperature (°C) 10.00 Outdoor Air Current...

  • Page 140: Piping Length Correction Factor

    21.3 Piping Length Correction Factor The characteristic of the unit has to be corrected in accordance with the piping length. 21.3.1 CS-Z25UFEAW CU-Z25UBEA 1.10 1.0096 1.0000 0.9781 0.9628 1.00 0.90 9 10 11 12 13 14 15 16 17 18 19 20 21 Pipe Length (m) 1.10 1.0042...
  • Page 141 21.3.2 CS-Z35UFEAW CU-Z35UBEA 1.10 1.0080 1.0000 0.9850 0.9656 1.00 0.90 9 10 11 12 13 14 15 16 17 18 19 20 21 Pipe Length (m) 1.10 1.0118 1.0000 0.9800 0.9392 1.00 0.90 0.80 9 10 11 12 13 14 15 16 17 18 19 20 21...
  • Page 142 21.3.3 CS-Z50UFEAW CU-Z50UBEA 1.10 1.0134 1.0000 0.9677 0.9576 1.00 0.90 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 Pipe Length (m) 1.10 1.0075...
  • Page 143 22. Exploded View and Replacement Parts List 22.1 Indoor Unit 15 11 CWH55025J x 11 CWH55051AJ Note: The above exploded view is for the purpose of parts disassembly and replacement. The non-numbered parts are not kept as standard service parts.
  • Page 144 SAFETY REF. NO. PART NAME & DESCRIPTION CS-Z25UFEAW CS-Z35UFEAW REMARK CHASSIS-COMPLETE ACXD50C01620 ← FAN MOTOR BRACKET (BOTTOM) ACXD54-01370 ← FAN MOTOR BRACKET (TOP) ACXD54-01380 ← FAN MOTOR L6CBYYYL0253 ← SCREW-BRACKET FAN MOTOR XTN4+12CFJ ← CROSS-FLOW FAN-COMPLETE ACXH02C00850 ← EVAPORATER COMPLETE ACXB30C17950 ←...
  • Page 145 SAFETY REF. NO. PART NAME & DESCRIPTION CS-Z25UFEAW CS-Z35UFEAW REMARK INSTALLATION INSTRUCTION ACXF60-28290 ← INSTALLATION INSTRUCTION ACXF60-28300 ← INSTALLATION INSTRUCTION ACXF60-28310 ← INSTALLATION INSTRUCTION ACXF60-28320 ← INSTALLATION INSTRUCTION ACXF60-28330 ← INSTALLATION INSTRUCTION ACXF60-28340 ← INSTALLATION INSTRUCTION ACXF60-28350 ← INSTALLATION INSTRUCTION ACXF60-28360 ←...
  • Page 146 SAFETY REF. NO. PART NAME & DESCRIPTION CS-Z50UFEAW REMARK CHASSIS-COMPLETE ACXD50C01620 FAN MOTOR BRACKET (BOTTOM) ACXD54-01370 FAN MOTOR BRACKET (TOP) ACXD54-01380 FAN MOTOR L6CBYYYL0253 SCREW-BRACKET FAN MOTOR XTN4+12CFJ CROSS-FLOW FAN-COMPLETE ACXH02C00850 EVAPORATER COMPLETE ACXB30C17150 FLARE NUT (LIQUID) CWT251048 FLARE NUT (GAS) CWT251032 PARTICULAR PIECE -TERMINAL ACXD93-15770...
  • Page 147 SAFETY REF. NO. PART NAME & DESCRIPTION CS-Z50UFEAW REMARK INSTALLATION INSTRUCTION ACXF60-28290 INSTALLATION INSTRUCTION ACXF60-28300 INSTALLATION INSTRUCTION ACXF60-28310 INSTALLATION INSTRUCTION ACXF60-28320 INSTALLATION INSTRUCTION ACXF60-28330 INSTALLATION INSTRUCTION ACXF60-28340 INSTALLATION INSTRUCTION ACXF60-28350 INSTALLATION INSTRUCTION ACXF60-28360 INSTALLATION INSTRUCTION ACXF60-28370 INSTALLATION INSTRUCTION ACXF60-28380 INSTALLATION INSTRUCTION ACXF60-28390 INSTALLATION INSTRUCTION ACXF60-28400...
  • Page 148 22.2 Outdoor Unit 22.2.1 CU-Z25UBEA Note The above exploded view is for the purpose of parts disassembly and replacement. The non-numbered parts are not kept as standard service parts.
  • Page 149 ACXB00-00130 V-COIL COMPLETE (4-WAY VALVE) ACXA43C00250 WIRE NET ACXD04-00040A BAG - COMPLETE CWG87C900 V-COIL COMPLETE (EXP. VALVE) ACXA43C00640 STRAINER CWB111032 RECEIVER CWB14011 PANASONIC BADGE CWE373439 INSTALLATION INSTRUCTION ACXF60-27460 INSTALLATION INSTRUCTION ACXF60-27470 INSTALLATION INSTRUCTION ACXF60-27480 INSTALLATION INSTRUCTION ACXF60-27490 INSTALLATION INSTRUCTION ACXF60-27500...
  • Page 150 SAFETY REF. NO. PART NAME & DESCRIPTION QTY. CU-Z25UBEA REMARK INSTALLATION INSTRUCTION ACXF60-27510 INSTALLATION INSTRUCTION ACXF60-27520 INSTALLATION INSTRUCTION ACXF60-27530 INSTALLATION INSTRUCTION ACXF60-27540 INSTALLATION INSTRUCTION ACXF60-27550 INSTALLATION INSTRUCTION ACXF60-27560 INSTALLATION INSTRUCTION ACXF60-27570 INSTALLATION INSTRUCTION ACXF60-27580 INSTALLATION INSTRUCTION ACXF60-27590 INSTALLATION INSTRUCTION ACXF60-27600 CWG861078 BASE BOARD-COMPLETE CWG62C1223...
  • Page 151 22.2.2 CU-Z35UBEA Note The above exploded view is for the purpose of parts disassembly and replacement. The non-numbered parts are not kept as standard service parts.
  • Page 152 4-WAYS VALVE ACXB00-00130 V-COIL COMPLETE (4 WAY VALVE) ACXA43C00250 WIRE NET CWD041200A V-COIL COMPLETE (EXP. VALVE) ACXA43C00640 RECEIVER CWB14011 STRAINER CWB111032 PANASONIC BADGE CWE373439 BAG - COMPLETE CWG87C900 SOUND PROOF MATERIAL CWG302701 INSTALLATION INSTRUCTION ACXF60-27460 INSTALLATION INSTRUCTION ACXF60-27470 INSTALLATION INSTRUCTION ACXF60-27480...
  • Page 153 SAFETY REF. NO. PART NAME & DESCRIPTION QTY. CU-Z35UBEA REMARK INSTALLATION INSTRUCTION ACXF60-27530 INSTALLATION INSTRUCTION ACXF60-27540 INSTALLATION INSTRUCTION ACXF60-27550 INSTALLATION INSTRUCTION ACXF60-27560 INSTALLATION INSTRUCTION ACXF60-27570 INSTALLATION INSTRUCTION ACXF60-27580 INSTALLATION INSTRUCTION ACXF60-27590 INSTALLATION INSTRUCTION ACXF60-27600 ACXG86-03760 BASE BOARD-COMPLETE CWG62C1144 SHOCK ABSORBER (L) CWG713416 SHOCK ABSORBER (R) CWG713415...
  • Page 154 22.2.3 CU-Z50UBEA Note The above exploded view is for the purpose of parts disassembly and replacement. The non-numbered parts are not kept as standard service parts.
  • Page 155 CABINET FRONT PLATE CO. ACXE06K00050 WIRE NET ACXD04-00130A CABINET TOP PLATE ACXE03-00170A CONTROL BOARD COVER - COMPLETE ACXH13C00170 CONTROL BOARD COVER CWH131470 PANASONIC BADGE CWE373439 SOUND PROOF MATERIAL CWG302636 SOUND PROOF MATERIAL CWG302630 RECEIVER CWB14011 SOUND PROOF MATERIAL CWG302632 STRAINER...
  • Page 156 SAFETY REF. NO. PART NAME & DESCRIPTION QTY. CU-Z50UBEA REMARK INSTALLATION INSTRUCTION ACXF60-27520 INSTALLATION INSTRUCTION ACXF60-27530 INSTALLATION INSTRUCTION ACXF60-27540 INSTALLATION INSTRUCTION ACXF60-27550 INSTALLATION INSTRUCTION ACXF60-27560 INSTALLATION INSTRUCTION ACXF60-27570 INSTALLATION INSTRUCTION ACXF60-27580 INSTALLATION INSTRUCTION ACXF60-27590 INSTALLATION INSTRUCTION ACXF60-27600 CWG861461 BASE BOARD-COMPLETE CWG62C1131 SHOCK ABSORBER (L) CWG713217...

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